GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping GHK Cu, commonly known as copper peptides, are found naturally within the human body where they play a vital role in skin repair and maintenance. Copper peptides support optimal skin function by helping GHK Cu Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B 7% GHK CU ACCELERANT Platinum Skin Care Reconstituting GHK Cu 50mg: Volume, Units, and Step by Step PeptidesExplorer GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age